CONTENT MANAGEMENT SYSTEM, CONTENT MANAGEMENT SERVER AND MANAGEMENT PROGRAM FOR SERVER, CLIENT TERMINAL AND MANAGEMENT PROGRAM FOR TERMINAL, AND REMOVABLE MEDIA
A content management system including a content management server 10 and a client terminal 20 connected to the content management server 10 via a communication network 5, wherein the content management server 10 transmits, to the client terminal 20, a management server ID identifying the content management server 10 and a content deletion request, the client terminal 20 receives the management server ID and the content deletion request from the content management server 10, determines whether or not the received management server ID matches a management server ID saved on the client terminal 20 side, and if they match, deletes the content saved on the client terminal 20 side, for example, in a removable media 40, the content corresponding to the deletion request. A content, such as a document, that is saved in various forms on the client terminal side is disabled for playback at an appropriate timing; accordingly, it is possible to reduce risks such as information leakage to ensure security, and also ensure c